Robert Pitz‐Paal

FarSky: Task-Aware Latent-Space Coupling for Generative Intra-Hour Solar Forecasting

Yann Fabel, Bijan Nouri, Milon Miah, Niklas Blum et autres

Accurate solar irradiance forecasting is essential for the reliable integration of photovoltaic power into modern electricity grids. All-sky imagers (ASI) provide high-resolution observations of clouds, making them well suited for intra-hour forecasting. Recent deep learning approaches have substantially improved forecast accuracy but …

ARTIST - AI-enhanced differentiable Ray Tracer for Irradiation Prediction in Solar Tower Digital Twins

Marlene Busch, Marie Weiel, Mathias Kuhl, Kaleb Phipps et autres

The ARTIST package provides an implementation of a differentiable ray tracer using the PyTorch machine-learning framework in Python. Leveraging automatic differentiation and GPU computation, it facilitates the optimization of solar tower power plants by combining gradient-based optimization methods with smooth parametric descriptions …

de (code pays fourni par la source)

Airborne real-time solar concentrator orientation estimation for heliostat fine calibration

Alexander Schnerring, Marc Röger, Adrian Winter, Rafal Broda et autres

Unmanned aerial vehicle (UAV)-based methods are a promising option for heliostat calibration. However, existing approaches require prior knowledge of the heliostat orientation and rely on predefined flight paths, which can be difficult to determine when the assumed orientations are uncertain. Small orientation …

de (code pays fourni par la source)

The PAINT database for operational concentrating solar power plant data following FAIR data principles

Kaleb Phipps, Mathias Kuhl, Marie Weiel, Marlene Busch et autres

Abstract Integrating renewable energy is critical for maintaining grid stability while striving towards global climate goals. Concentrating solar power tower plants offer a promising solution but their competitiveness is currently hindered by high operational costs, limited data availability and slow adoption of …

de (code pays fourni par la source)

Experimental Assessment and Modeling of Solar Irradiance for an Agrivoltaic Greenhouse for Watermelon Production in Southern Spain

Anna Kujawa, Natalie Hanrieder, Sergio González Rodríguez, Lyubomir Hristov et autres

Watermelons account for 7% of the world’s fruit vegetable production. In the European market, Spain contributes around 35% of total watermelon supply, with the majority grown in greenhouses in Almería, Southern Spain. This study presents experimental results from the first agrivoltaic watermelon …

de, es, it (code pays fourni par la source)

Solar Energy Autopilot (SOLEA): A Holistic System Architecture for Autonomous Concentrated Solar Thermal Plants and Its Evaluation in an Operational Power Tower Facility

Inga Miadowicz, Mathias Kuhl, Daniel Maldonado Quinto, Niklas Dürr et autres

Concentrated solar thermal (CST) plants can provide dispatchable renewable energy but remain complex and costly to operate due to tightly coupled subsystems, dynamic environmental conditions, and high safety requirements. This work presents the Solar Energy Autopilot (SOLEA), a holistic four-layer architecture that …

de (code pays fourni par la source)

Solar Energy Autopilot (SOLEA): A Holistic System Architecture for Autonomous Concentrated Solar Thermal Plants and Its Evaluation in an Operational Power Tower Facility

Inga Miadowicz, Mathias Kuhl, Daniel Maldonado Quinto, Niklas Dürr et autres

Concentrated solar thermal (CST) plants can provide dispatchable renewable energy but remain complex and costly to operate due to tightly coupled subsystems, dynamic environmental conditions, and high safety requirements. This work presents the Solar Energy Autopilot (SOLEA), a holistic four-layer architecture that …

de (code pays fourni par la source)

Solar Energy Autopilot (SOLEA): A Holistic System Architecture for Autonomous Concentrated Solar Thermal Plants and Its Evaluation in an Operational Power Tower Facility

Inga Miadowicz, Mathias Kuhl, Daniel Maldonado Quinto, Niklas Dürr et autres

de (code pays fourni par la source)

A Smart Window Based on Reversible Metal Electrodeposition (RME) With Tin and Copper

Rebecca Cizek, Stephan J. Heise, Florian Sutter, Peter Heller et autres

The optical transmittance of smart windows can be modulated on demand, rendering them suitable for use in building facades, automobile mirrors, windows, display screens, and greenhouses. This study investigates reversible metal electrodeposition (RME) smart windows using a nontoxic, solid‐like electrolyte based on …

Volumetric flow determination in parabolic trough plants using the time offset of temperature gradients

Alex Brenner, Tobias Hirsch, Marc Röger, Jana Stengler et autres

The absence of flow measurements in the loop of a parabolic trough solar field makes it impossible to easily determine flow for the purpose of calculating the performance of a loop. This proof-of-concept study uses the temperature signals of the heat transfer …

Investigation of synergies between solar energy and high-temperature heat pumps for process heat applications in Germany using nonlinear techno-economic optimization

Matthias Loevenich, Martin Bähr, Rushit Kansara, Jürgen Dersch et autres

The combination of solar energy and high-temperature heat pumps shows promising potential for supplying low to medium temperature process heat, even in countries with moderate available irradiation. To date, combinations of solar thermal collectors, high-temperature heat pumps, and thermal energy storage have …

de (code pays fourni par la source)

Setup for Long‐Term Outdoor Testing of Optically Modified PV Modules Regarding their Thermal and Electrical Behavior Under Load

Moritz Ruhwedel, Florian Sutter, Stephan J. Heise, Udayan Banik et autres

Optical modifications of the light‐facing side of photovoltaic (PV) modules can be used to increase their efficiency by implementing anti‐reflective or anti‐soiling properties or by achieving a reduction of the operating temperature. Furthermore, such front‐optical modifications can be utilized to hybridize concentrating …

de (code pays fourni par la source)